2
Question
Choose the wrongly matched pair regarding the position of reproductive structures in earthworm.
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Solution
The correct option is C Male genital pore 9th segment
1.
Testes are in two pairs, white and lobed, located in the 10th and 11th segments.
2.
Spermathecae are in four pairs in each of the 6th, 7th, 8th, 9th segment. They
store spermatozoa during copulation.
3.
The male genital pore is found in one pair located in the 18th segment. Sperm
produced in the testes is pass out through male genital pore.
4. Female genital pores lie on the ventral
surface of segment 14. So, the correct option will be 'Male genital pore - 9th
segment'.
5.
One pair of ovaries is attached at the inter-segmental septum of the 12th and
13th segments.
The
correct option is C.
1. Testes are in two pairs, white and lobed, located in the 10th and 11th segments.
2. Spermathecae are in four pairs in each of the 6th, 7th, 8th, 9th segment. They store spermatozoa during copulation.
3. The male genital pore is found in one pair located in the 18th segment. Sperm produced in the testes is pass out through male genital pore.
4. Female genital pores lie on the ventral surface of segment 14. So, the correct option will be 'Male genital pore - 9th segment'.
5. One pair of ovaries is attached at the inter-segmental septum of the 12th and 13th segments.
The correct option is C.
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